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Question

A 2 m × 4 m rectangular footing has to carry a uniformly distributed load of 120 kPa. as per the 2 : 1 dispersion method of stress distribution, the increment in vertical stress (kPa) at a depth of 2 m below the footing is
  1. 40

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Solution

The correct option is A 40
Increment in the vertical stress

=120×2×4(2+h)(4+h)

=120×2×4(2+2)(4+2)

= 40 kPa

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